EP 0346307 A3 19910306 - WET PRESS FELT TO BE USED IN A PAPERMAKING MACHINE

Title (en)

WET PRESS FELT TO BE USED IN A PAPERMAKING MACHINE

Publication

EP 0346307 A3 19910306 (EN)

Application

EP 89850159 A 19890516

Priority

SE 8802153 A 19880609
SE 8802154 A 19880609

Abstract (en)

[origin: EP0346307A2] A dewatering wet press felt to be used on papermaking machines and comprising at least one top layer (6) made from staple fibers and the like and facing the paper web (4), and a second layer. The second layer (7) constitutes a barrier layer of such a nature that during the compression phase in the press nip in the press section of the papermaking machine the water is forced through the second layer (7) but is prevented from flowing back to the top layer and the paper web during the expansion phase after the press nip.

IPC 1-7

D21F 7/08

IPC 8 full level

D21F 7/08 (2006.01)

CPC (source: EP US)

D21F 7/083 (2013.01 - EP US); Y10S 428/913 (2013.01 - EP US); Y10T 428/24273 (2015.01 - EP US); Y10T 428/24322 (2015.01 - EP US); Y10T 428/249953 (2015.04 - EP US); Y10T 442/3537 (2015.04 - EP US)

Citation (search report)

[X] AU 484602 A
[X] US 4199401 A 19800422 - COTTIGNY CYRILLE M [US], et al
[X] US 3214331 A 19651026 - WICKER DAN B
[X] US 3214329 A 19651026 - WICKER DAN B
[X] US 3214327 A 19651026 - WICKER DAN B, et al
[A] DE 2944924 A1 19810521 - VOITH GMBH J M [DE]
[A] FR 2188626 A5 19740118 - NEYRPIC BMB [FR]
[A] US 2038712 A 19360428 - FRIDOLF BRODIN CARL
[XE] GB 2220885 A 19900124 - TAMFELT OY AB [FI]

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI NL SE

DOCDB simple family (publication)

EP 0346307 A2 19891213; EP 0346307 A3 19910306; AU 3499289 A 19891214; AU 607858 B2 19910314; BR 8902591 A 19900123; CA 1317143 C 19930504; FI 892814 A0 19890608; FI 892814 A 19891210; FI 94881 B 19950731; FI 94881 C 19951110; JP H038888 A 19910116; MX 169886 B 19930729; NO 179491 B 19960708; NO 179491 C 19961016; NO 892358 D0 19890608; NO 892358 L 19891211; US 5182164 A 19930126

DOCDB simple family (application)

EP 89850159 A 19890516; AU 3499289 A 19890519; BR 8902591 A 19890605; CA 600914 A 19890529; FI 892814 A 19890608; JP 14426789 A 19890608; MX 1634089 A 19890606; NO 892358 A 19890608; US 35743089 A 19890525